Remove print.
Refactor and test URL generator of Yahoo finance.
Test symbol file loading in yahoo spider.
Test inline symbols in yahoo spider.
More tests on yahoo spider.
Test YahooSpider.parse().
Don't need --use-mirrors anymore.
Add main command.
Adjust log and cache settings.
Make setup.py work.
Make setup.py more robust.
Use docopt to parse command line arguments.
Merge branch 'master' into dev

Conflicts:
	bin/pystock-crawler
	requirements.txt